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@Rik_Van_Looy
Another interesting, recent effort is this by BMW-backed optimisation software Elise.
The frame is printed so I doubt it's particularly cost effective. Like that WAAM weld-bike earlier in the thread, losing the constraints of tubes and lugs opens opportunities and enables generative design algorithms to do their thing within defined constraints.
According to their LinkedIn “The pipes of the Bionic Bike are not hollow at all points and have no uniform thickness. Instead, they consist of a completely new lattice construction on the inside in high-loaded areas.
In this way, the frame is custom-made for a specific user. For a lighter cyclist, the algorithm would construct it differently without much effort. Once the DNA is created, you could also easily change the bike type and transform the folding bike into a mountain bike in no time. It thus frees the developers from many constraints and helps them to create better products”
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